Synthesis, Preparation, and Characterization of Liquid Crystal/Organo-Montmorillonite Nanocomposites


YANIC S. M. , GUZELLER D., OCAK H. , ÇAKAR F. , EROL I., CANKURTARAN Ö. , et al.

MOLECULAR CRYSTALS AND LIQUID CRYSTALS, cilt.607, ss.23-31, 2015 (SCI İndekslerine Giren Dergi)

  • Cilt numarası: 607 Konu: 1
  • Basım Tarihi: 2015
  • Doi Numarası: 10.1080/15421406.2014.927550
  • Dergi Adı: MOLECULAR CRYSTALS AND LIQUID CRYSTALS
  • Sayfa Sayısı: ss.23-31

Özet

A new chiral calamitic liquid crystal 4 '-((S)-3,7-dimethyloctyloxy)phenyl 4-(10-undecen-1-yloxy)benzoate (DOPUB) has been synthesized and characterized by spectroscopic methods (H-1-NMR and C-13-NMR). The focus is on the preparation of the nanocomposites of new chiral calamitic liquid crystal DOPUB/Organo-montmorillonite clay (OMMT) by solution intercalation method addition with OMMT contents 2.5, 5, and 7.5 wt% and determination of the morphology, thermal behavior, and crystalline properties of liquid crystal DOPUB/OMMT. Montmorillonite (MMT) modified by cationic surfactant cetyltrimethylammonium bromide (CTAB) for increasing the interaction of clay with DOPUB liquid crystal. The characterization of clay minerals and nanocomposites was investigated by X-ray diffraction. The mesomorphic behavior of liquid crystal (DOPUB) and the nanocomposites was investigated by differential scanning calorimetry (DSC) and optical polarizing microscopy (PM).